Home / 143,520.48-215,263.80-38,347.56

Finding the Fourth Proportional to 143,520.48, 215,263.80 and 38,347.56

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Solution

The fourth proportional to 143,520.48, 215,263.80 and 38,347.56 is: 57,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,520.48 : 215,263.80 = 38,347.56 : x
  2. Step 2: Convert to fraction form
    143,520.48/215,263.80 = 38,347.56/x
  3. Step 3: Cross multiply
    143,520.48x = 215,263.80 × 38,347.56
  4. Step 4: Simplify right side
    143,520.48x = 8,254,841,486.33
  5. Step 5: Solve for x
    x = 8,254,841,486.33/143,520.48
  6. Step 6: Final answer
    x = 57,516.82

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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.