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Finding the Fourth Proportional to 125,344.71, 172,959.03 and 70,904.31

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Solution

The fourth proportional to 125,344.71, 172,959.03 and 70,904.31 is: 97,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,344.71 : 172,959.03 = 70,904.31 : x
  2. Step 2: Convert to fraction form
    125,344.71/172,959.03 = 70,904.31/x
  3. Step 3: Cross multiply
    125,344.71x = 172,959.03 × 70,904.31
  4. Step 4: Simplify right side
    125,344.71x = 12,263,540,031.82
  5. Step 5: Solve for x
    x = 12,263,540,031.82/125,344.71
  6. Step 6: Final answer
    x = 97,838.51

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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.