Home / 157,947.84-217,973.88-86,332.68

Finding the Fourth Proportional to 157,947.84, 217,973.88 and 86,332.68

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Solution

The fourth proportional to 157,947.84, 217,973.88 and 86,332.68 is: 119,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,947.84 : 217,973.88 = 86,332.68 : x
  2. Step 2: Convert to fraction form
    157,947.84/217,973.88 = 86,332.68/x
  3. Step 3: Cross multiply
    157,947.84x = 217,973.88 × 86,332.68
  4. Step 4: Simplify right side
    157,947.84x = 18,818,269,230.40
  5. Step 5: Solve for x
    x = 18,818,269,230.40/157,947.84
  6. Step 6: Final answer
    x = 119,142.30

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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.