Home / 152,127.59-209,935.13-84,143.34

Finding the Fourth Proportional to 152,127.59, 209,935.13 and 84,143.34

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Solution

The fourth proportional to 152,127.59, 209,935.13 and 84,143.34 is: 116,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,127.59 : 209,935.13 = 84,143.34 : x
  2. Step 2: Convert to fraction form
    152,127.59/209,935.13 = 84,143.34/x
  3. Step 3: Cross multiply
    152,127.59x = 209,935.13 × 84,143.34
  4. Step 4: Simplify right side
    152,127.59x = 17,664,642,600.82
  5. Step 5: Solve for x
    x = 17,664,642,600.82/152,127.59
  6. Step 6: Final answer
    x = 116,117.29

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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.