Home / 159,535.04-220,155.53-86,938.57

Finding the Fourth Proportional to 159,535.04, 220,155.53 and 86,938.57

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Solution

The fourth proportional to 159,535.04, 220,155.53 and 86,938.57 is: 119,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,535.04 : 220,155.53 = 86,938.57 : x
  2. Step 2: Convert to fraction form
    159,535.04/220,155.53 = 86,938.57/x
  3. Step 3: Cross multiply
    159,535.04x = 220,155.53 × 86,938.57
  4. Step 4: Simplify right side
    159,535.04x = 19,140,006,796.29
  5. Step 5: Solve for x
    x = 19,140,006,796.29/159,535.04
  6. Step 6: Final answer
    x = 119,973.69

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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.