Home / 103,437.23-155,152.76-28,561.95

Finding the Fourth Proportional to 103,437.23, 155,152.76 and 28,561.95

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Solution

The fourth proportional to 103,437.23, 155,152.76 and 28,561.95 is: 42,842.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,437.23 : 155,152.76 = 28,561.95 : x
  2. Step 2: Convert to fraction form
    103,437.23/155,152.76 = 28,561.95/x
  3. Step 3: Cross multiply
    103,437.23x = 155,152.76 × 28,561.95
  4. Step 4: Simplify right side
    103,437.23x = 4,431,465,373.48
  5. Step 5: Solve for x
    x = 4,431,465,373.48/103,437.23
  6. Step 6: Final answer
    x = 42,842.07

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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.