Home / 103,685.71-155,548.91-47,527.20

Finding the Fourth Proportional to 103,685.71, 155,548.91 and 47,527.20

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Solution

The fourth proportional to 103,685.71, 155,548.91 and 47,527.20 is: 71,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,685.71 : 155,548.91 = 47,527.20 : x
  2. Step 2: Convert to fraction form
    103,685.71/155,548.91 = 47,527.20/x
  3. Step 3: Cross multiply
    103,685.71x = 155,548.91 × 47,527.20
  4. Step 4: Simplify right side
    103,685.71x = 7,392,804,155.35
  5. Step 5: Solve for x
    x = 7,392,804,155.35/103,685.71
  6. Step 6: Final answer
    x = 71,300.13

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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.