Home / 125,315.02-172,943.90-71,598.90

Finding the Fourth Proportional to 125,315.02, 172,943.90 and 71,598.90

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Solution

The fourth proportional to 125,315.02, 172,943.90 and 71,598.90 is: 98,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,315.02 : 172,943.90 = 71,598.90 : x
  2. Step 2: Convert to fraction form
    125,315.02/172,943.90 = 71,598.90/x
  3. Step 3: Cross multiply
    125,315.02x = 172,943.90 × 71,598.90
  4. Step 4: Simplify right side
    125,315.02x = 12,382,593,001.71
  5. Step 5: Solve for x
    x = 12,382,593,001.71/125,315.02
  6. Step 6: Final answer
    x = 98,811.72

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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.