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Finding the Fourth Proportional to 102,063.40, 153,071.70 and 38,890.69

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Solution

The fourth proportional to 102,063.40, 153,071.70 and 38,890.69 is: 58,327.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,063.40 : 153,071.70 = 38,890.69 : x
  2. Step 2: Convert to fraction form
    102,063.40/153,071.70 = 38,890.69/x
  3. Step 3: Cross multiply
    102,063.40x = 153,071.70 × 38,890.69
  4. Step 4: Simplify right side
    102,063.40x = 5,953,064,032.47
  5. Step 5: Solve for x
    x = 5,953,064,032.47/102,063.40
  6. Step 6: Final answer
    x = 58,327.12

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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.