Home / 124,464.40-186,696.60-77,117.20

Finding the Fourth Proportional to 124,464.40, 186,696.60 and 77,117.20

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Solution

The fourth proportional to 124,464.40, 186,696.60 and 77,117.20 is: 115,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,464.40 : 186,696.60 = 77,117.20 : x
  2. Step 2: Convert to fraction form
    124,464.40/186,696.60 = 77,117.20/x
  3. Step 3: Cross multiply
    124,464.40x = 186,696.60 × 77,117.20
  4. Step 4: Simplify right side
    124,464.40x = 14,397,519,041.52
  5. Step 5: Solve for x
    x = 14,397,519,041.52/124,464.40
  6. Step 6: Final answer
    x = 115,675.80

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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.