Home / 113,001.86-155,931.91-67,679.02

Finding the Fourth Proportional to 113,001.86, 155,931.91 and 67,679.02

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Solution

The fourth proportional to 113,001.86, 155,931.91 and 67,679.02 is: 93,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,001.86 : 155,931.91 = 67,679.02 : x
  2. Step 2: Convert to fraction form
    113,001.86/155,931.91 = 67,679.02/x
  3. Step 3: Cross multiply
    113,001.86x = 155,931.91 × 67,679.02
  4. Step 4: Simplify right side
    113,001.86x = 10,553,318,855.53
  5. Step 5: Solve for x
    x = 10,553,318,855.53/113,001.86
  6. Step 6: Final answer
    x = 93,390.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.