Home / 151,459.10-209,005.14-91,018.52

Finding the Fourth Proportional to 151,459.10, 209,005.14 and 91,018.52

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Solution

The fourth proportional to 151,459.10, 209,005.14 and 91,018.52 is: 125,600.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,459.10 : 209,005.14 = 91,018.52 : x
  2. Step 2: Convert to fraction form
    151,459.10/209,005.14 = 91,018.52/x
  3. Step 3: Cross multiply
    151,459.10x = 209,005.14 × 91,018.52
  4. Step 4: Simplify right side
    151,459.10x = 19,023,338,515.19
  5. Step 5: Solve for x
    x = 19,023,338,515.19/151,459.10
  6. Step 6: Final answer
    x = 125,600.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.