Home / 116,113.24-160,285.26-78,438.52

Finding the Fourth Proportional to 116,113.24, 160,285.26 and 78,438.52

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Solution

The fourth proportional to 116,113.24, 160,285.26 and 78,438.52 is: 108,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,113.24 : 160,285.26 = 78,438.52 : x
  2. Step 2: Convert to fraction form
    116,113.24/160,285.26 = 78,438.52/x
  3. Step 3: Cross multiply
    116,113.24x = 160,285.26 × 78,438.52
  4. Step 4: Simplify right side
    116,113.24x = 12,572,538,572.22
  5. Step 5: Solve for x
    x = 12,572,538,572.22/116,113.24
  6. Step 6: Final answer
    x = 108,278.25

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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.