Home / 125,139.24-172,695.48-70,687.08

Finding the Fourth Proportional to 125,139.24, 172,695.48 and 70,687.08

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Solution

The fourth proportional to 125,139.24, 172,695.48 and 70,687.08 is: 97,550.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,139.24 : 172,695.48 = 70,687.08 : x
  2. Step 2: Convert to fraction form
    125,139.24/172,695.48 = 70,687.08/x
  3. Step 3: Cross multiply
    125,139.24x = 172,695.48 × 70,687.08
  4. Step 4: Simplify right side
    125,139.24x = 12,207,339,210.40
  5. Step 5: Solve for x
    x = 12,207,339,210.40/125,139.24
  6. Step 6: Final answer
    x = 97,550.05

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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.