Home / 143,614.58-215,421.71-38,430.81

Finding the Fourth Proportional to 143,614.58, 215,421.71 and 38,430.81

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Solution

The fourth proportional to 143,614.58, 215,421.71 and 38,430.81 is: 57,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,614.58 : 215,421.71 = 38,430.81 : x
  2. Step 2: Convert to fraction form
    143,614.58/215,421.71 = 38,430.81/x
  3. Step 3: Cross multiply
    143,614.58x = 215,421.71 × 38,430.81
  4. Step 4: Simplify right side
    143,614.58x = 8,278,830,614.73
  5. Step 5: Solve for x
    x = 8,278,830,614.73/143,614.58
  6. Step 6: Final answer
    x = 57,646.17

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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.