Home / 138,816.23-208,307.65-59,930.38

Finding the Fourth Proportional to 138,816.23, 208,307.65 and 59,930.38

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Solution

The fourth proportional to 138,816.23, 208,307.65 and 59,930.38 is: 89,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,816.23 : 208,307.65 = 59,930.38 : x
  2. Step 2: Convert to fraction form
    138,816.23/208,307.65 = 59,930.38/x
  3. Step 3: Cross multiply
    138,816.23x = 208,307.65 × 59,930.38
  4. Step 4: Simplify right side
    138,816.23x = 12,483,956,621.41
  5. Step 5: Solve for x
    x = 12,483,956,621.41/138,816.23
  6. Step 6: Final answer
    x = 89,931.53

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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.