Home / 138,687.10-208,030.65-58,737.67

Finding the Fourth Proportional to 138,687.10, 208,030.65 and 58,737.67

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Solution

The fourth proportional to 138,687.10, 208,030.65 and 58,737.67 is: 88,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,687.10 : 208,030.65 = 58,737.67 : x
  2. Step 2: Convert to fraction form
    138,687.10/208,030.65 = 58,737.67/x
  3. Step 3: Cross multiply
    138,687.10x = 208,030.65 × 58,737.67
  4. Step 4: Simplify right side
    138,687.10x = 12,219,234,335.74
  5. Step 5: Solve for x
    x = 12,219,234,335.74/138,687.10
  6. Step 6: Final answer
    x = 88,106.50

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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.