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Finding the Fourth Proportional to 102,015.30, 153,022.95 and 60,543.30

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Solution

The fourth proportional to 102,015.30, 153,022.95 and 60,543.30 is: 90,814.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.30 : 153,022.95 = 60,543.30 : x
  2. Step 2: Convert to fraction form
    102,015.30/153,022.95 = 60,543.30/x
  3. Step 3: Cross multiply
    102,015.30x = 153,022.95 × 60,543.30
  4. Step 4: Simplify right side
    102,015.30x = 9,264,514,368.74
  5. Step 5: Solve for x
    x = 9,264,514,368.74/102,015.30
  6. Step 6: Final answer
    x = 90,814.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.