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Finding the Fourth Proportional to 160,428, 240,878.54 and 89,489.22

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Solution

The fourth proportional to 160,428, 240,878.54 and 89,489.22 is: 134,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,428 : 240,878.54 = 89,489.22 : x
  2. Step 2: Convert to fraction form
    160,428/240,878.54 = 89,489.22/x
  3. Step 3: Cross multiply
    160,428x = 240,878.54 × 89,489.22
  4. Step 4: Simplify right side
    160,428x = 21,556,032,211.89
  5. Step 5: Solve for x
    x = 21,556,032,211.89/160,428
  6. Step 6: Final answer
    x = 134,365.77

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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.