Home / 125,293.32-172,937.16-77,518.44

Finding the Fourth Proportional to 125,293.32, 172,937.16 and 77,518.44

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Solution

The fourth proportional to 125,293.32, 172,937.16 and 77,518.44 is: 106,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,293.32 : 172,937.16 = 77,518.44 : x
  2. Step 2: Convert to fraction form
    125,293.32/172,937.16 = 77,518.44/x
  3. Step 3: Cross multiply
    125,293.32x = 172,937.16 × 77,518.44
  4. Step 4: Simplify right side
    125,293.32x = 13,405,818,861.23
  5. Step 5: Solve for x
    x = 13,405,818,861.23/125,293.32
  6. Step 6: Final answer
    x = 106,995.48

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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.