Home / 145,886.76-218,208.06-89,588.52

Finding the Fourth Proportional to 145,886.76, 218,208.06 and 89,588.52

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Solution

The fourth proportional to 145,886.76, 218,208.06 and 89,588.52 is: 134,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,886.76 : 218,208.06 = 89,588.52 : x
  2. Step 2: Convert to fraction form
    145,886.76/218,208.06 = 89,588.52/x
  3. Step 3: Cross multiply
    145,886.76x = 218,208.06 × 89,588.52
  4. Step 4: Simplify right side
    145,886.76x = 19,548,937,147.47
  5. Step 5: Solve for x
    x = 19,548,937,147.47/145,886.76
  6. Step 6: Final answer
    x = 134,000.76

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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.