Home / 143,787.81-215,681.70-43,947.15

Finding the Fourth Proportional to 143,787.81, 215,681.70 and 43,947.15

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Solution

The fourth proportional to 143,787.81, 215,681.70 and 43,947.15 is: 65,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,787.81 : 215,681.70 = 43,947.15 : x
  2. Step 2: Convert to fraction form
    143,787.81/215,681.70 = 43,947.15/x
  3. Step 3: Cross multiply
    143,787.81x = 215,681.70 × 43,947.15
  4. Step 4: Simplify right side
    143,787.81x = 9,478,596,022.16
  5. Step 5: Solve for x
    x = 9,478,596,022.16/143,787.81
  6. Step 6: Final answer
    x = 65,920.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.