Home / 124,554,153.80-186,831,230.70-72,685,512.20

Finding the Fourth Proportional to 124,554,153.80, 186,831,230.70 and 72,685,512.20

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Solution

The fourth proportional to 124,554,153.80, 186,831,230.70 and 72,685,512.20 is: 109,028,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,554,153.80 : 186,831,230.70 = 72,685,512.20 : x
  2. Step 2: Convert to fraction form
    124,554,153.80/186,831,230.70 = 72,685,512.20/x
  3. Step 3: Cross multiply
    124,554,153.80x = 186,831,230.70 × 72,685,512.20
  4. Step 4: Simplify right side
    124,554,153.80x = 13,579,923,698,385,864
  5. Step 5: Solve for x
    x = 13,579,923,698,385,864/124,554,153.80
  6. Step 6: Final answer
    x = 109,028,268.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.