Home / 103,886.91-155,707.29-47,679.66

Finding the Fourth Proportional to 103,886.91, 155,707.29 and 47,679.66

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Solution

The fourth proportional to 103,886.91, 155,707.29 and 47,679.66 is: 71,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,886.91 : 155,707.29 = 47,679.66 : x
  2. Step 2: Convert to fraction form
    103,886.91/155,707.29 = 47,679.66/x
  3. Step 3: Cross multiply
    103,886.91x = 155,707.29 × 47,679.66
  4. Step 4: Simplify right side
    103,886.91x = 7,424,070,646.72
  5. Step 5: Solve for x
    x = 7,424,070,646.72/103,886.91
  6. Step 6: Final answer
    x = 71,463.00

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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.