Home / 152,142.17-209,940.02-84,148.34

Finding the Fourth Proportional to 152,142.17, 209,940.02 and 84,148.34

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Solution

The fourth proportional to 152,142.17, 209,940.02 and 84,148.34 is: 116,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,142.17 : 209,940.02 = 84,148.34 : x
  2. Step 2: Convert to fraction form
    152,142.17/209,940.02 = 84,148.34/x
  3. Step 3: Cross multiply
    152,142.17x = 209,940.02 × 84,148.34
  4. Step 4: Simplify right side
    152,142.17x = 17,666,102,712.13
  5. Step 5: Solve for x
    x = 17,666,102,712.13/152,142.17
  6. Step 6: Final answer
    x = 116,115.76

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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.