Home / 103,312.51-155,052.07-53,406.84

Finding the Fourth Proportional to 103,312.51, 155,052.07 and 53,406.84

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Solution

The fourth proportional to 103,312.51, 155,052.07 and 53,406.84 is: 80,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,312.51 : 155,052.07 = 53,406.84 : x
  2. Step 2: Convert to fraction form
    103,312.51/155,052.07 = 53,406.84/x
  3. Step 3: Cross multiply
    103,312.51x = 155,052.07 × 53,406.84
  4. Step 4: Simplify right side
    103,312.51x = 8,280,841,842.50
  5. Step 5: Solve for x
    x = 8,280,841,842.50/103,312.51
  6. Step 6: Final answer
    x = 80,153.33

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1.5x scale

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.