Home / 89,723.40-134,433.90-70,931.40

Finding the Fourth Proportional to 89,723.40, 134,433.90 and 70,931.40

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Solution

The fourth proportional to 89,723.40, 134,433.90 and 70,931.40 is: 106,277.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,723.40 : 134,433.90 = 70,931.40 : x
  2. Step 2: Convert to fraction form
    89,723.40/134,433.90 = 70,931.40/x
  3. Step 3: Cross multiply
    89,723.40x = 134,433.90 × 70,931.40
  4. Step 4: Simplify right side
    89,723.40x = 9,535,584,734.46
  5. Step 5: Solve for x
    x = 9,535,584,734.46/89,723.40
  6. Step 6: Final answer
    x = 106,277.57

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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.