Home / 153,110.25-211,280.13-85,123.04

Finding the Fourth Proportional to 153,110.25, 211,280.13 and 85,123.04

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Solution

The fourth proportional to 153,110.25, 211,280.13 and 85,123.04 is: 117,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110.25 : 211,280.13 = 85,123.04 : x
  2. Step 2: Convert to fraction form
    153,110.25/211,280.13 = 85,123.04/x
  3. Step 3: Cross multiply
    153,110.25x = 211,280.13 × 85,123.04
  4. Step 4: Simplify right side
    153,110.25x = 17,984,805,900.79
  5. Step 5: Solve for x
    x = 17,984,805,900.79/153,110.25
  6. Step 6: Final answer
    x = 117,463.11

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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.