Home / 156,308.24-215,700.36-89,240.24

Finding the Fourth Proportional to 156,308.24, 215,700.36 and 89,240.24

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Solution

The fourth proportional to 156,308.24, 215,700.36 and 89,240.24 is: 123,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,308.24 : 215,700.36 = 89,240.24 : x
  2. Step 2: Convert to fraction form
    156,308.24/215,700.36 = 89,240.24/x
  3. Step 3: Cross multiply
    156,308.24x = 215,700.36 × 89,240.24
  4. Step 4: Simplify right side
    156,308.24x = 19,249,151,894.49
  5. Step 5: Solve for x
    x = 19,249,151,894.49/156,308.24
  6. Step 6: Final answer
    x = 123,148.67

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1.5x scale

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.