Home / 156,433.17-215,864.49-88,440.71

Finding the Fourth Proportional to 156,433.17, 215,864.49 and 88,440.71

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Solution

The fourth proportional to 156,433.17, 215,864.49 and 88,440.71 is: 122,040.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,433.17 : 215,864.49 = 88,440.71 : x
  2. Step 2: Convert to fraction form
    156,433.17/215,864.49 = 88,440.71/x
  3. Step 3: Cross multiply
    156,433.17x = 215,864.49 × 88,440.71
  4. Step 4: Simplify right side
    156,433.17x = 19,091,209,225.96
  5. Step 5: Solve for x
    x = 19,091,209,225.96/156,433.17
  6. Step 6: Final answer
    x = 122,040.67

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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.