Home / 142,560.90-196,656.43-91,581.65

Finding the Fourth Proportional to 142,560.90, 196,656.43 and 91,581.65

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Solution

The fourth proportional to 142,560.90, 196,656.43 and 91,581.65 is: 126,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,560.90 : 196,656.43 = 91,581.65 : x
  2. Step 2: Convert to fraction form
    142,560.90/196,656.43 = 91,581.65/x
  3. Step 3: Cross multiply
    142,560.90x = 196,656.43 × 91,581.65
  4. Step 4: Simplify right side
    142,560.90x = 18,010,120,342.51
  5. Step 5: Solve for x
    x = 18,010,120,342.51/142,560.90
  6. Step 6: Final answer
    x = 126,332.82

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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.