Home / 143,155.28-197,572.50-86,567.06

Finding the Fourth Proportional to 143,155.28, 197,572.50 and 86,567.06

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Solution

The fourth proportional to 143,155.28, 197,572.50 and 86,567.06 is: 119,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,155.28 : 197,572.50 = 86,567.06 : x
  2. Step 2: Convert to fraction form
    143,155.28/197,572.50 = 86,567.06/x
  3. Step 3: Cross multiply
    143,155.28x = 197,572.50 × 86,567.06
  4. Step 4: Simplify right side
    143,155.28x = 17,103,270,461.85
  5. Step 5: Solve for x
    x = 17,103,270,461.85/143,155.28
  6. Step 6: Final answer
    x = 119,473.56

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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.