Home / 125,084.28-172,612.94-71,368.32

Finding the Fourth Proportional to 125,084.28, 172,612.94 and 71,368.32

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Solution

The fourth proportional to 125,084.28, 172,612.94 and 71,368.32 is: 98,486.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,084.28 : 172,612.94 = 71,368.32 : x
  2. Step 2: Convert to fraction form
    125,084.28/172,612.94 = 71,368.32/x
  3. Step 3: Cross multiply
    125,084.28x = 172,612.94 × 71,368.32
  4. Step 4: Simplify right side
    125,084.28x = 12,319,095,538.06
  5. Step 5: Solve for x
    x = 12,319,095,538.06/125,084.28
  6. Step 6: Final answer
    x = 98,486.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.