Home / 141,572.32-212,281.56-70,338.76

Finding the Fourth Proportional to 141,572.32, 212,281.56 and 70,338.76

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Solution

The fourth proportional to 141,572.32, 212,281.56 and 70,338.76 is: 105,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,572.32 : 212,281.56 = 70,338.76 : x
  2. Step 2: Convert to fraction form
    141,572.32/212,281.56 = 70,338.76/x
  3. Step 3: Cross multiply
    141,572.32x = 212,281.56 × 70,338.76
  4. Step 4: Simplify right side
    141,572.32x = 14,931,621,701.27
  5. Step 5: Solve for x
    x = 14,931,621,701.27/141,572.32
  6. Step 6: Final answer
    x = 105,469.92

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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.