Home / 142,330.52-213,488.08-72,208.01

Finding the Fourth Proportional to 142,330.52, 213,488.08 and 72,208.01

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Solution

The fourth proportional to 142,330.52, 213,488.08 and 72,208.01 is: 108,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,330.52 : 213,488.08 = 72,208.01 : x
  2. Step 2: Convert to fraction form
    142,330.52/213,488.08 = 72,208.01/x
  3. Step 3: Cross multiply
    142,330.52x = 213,488.08 × 72,208.01
  4. Step 4: Simplify right side
    142,330.52x = 15,415,549,415.52
  5. Step 5: Solve for x
    x = 15,415,549,415.52/142,330.52
  6. Step 6: Final answer
    x = 108,308.11

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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.