Home / 153,823.95-230,735.81-78,902.39

Finding the Fourth Proportional to 153,823.95, 230,735.81 and 78,902.39

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Solution

The fourth proportional to 153,823.95, 230,735.81 and 78,902.39 is: 118,353.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,823.95 : 230,735.81 = 78,902.39 : x
  2. Step 2: Convert to fraction form
    153,823.95/230,735.81 = 78,902.39/x
  3. Step 3: Cross multiply
    153,823.95x = 230,735.81 × 78,902.39
  4. Step 4: Simplify right side
    153,823.95x = 18,205,605,319.39
  5. Step 5: Solve for x
    x = 18,205,605,319.39/153,823.95
  6. Step 6: Final answer
    x = 118,353.52

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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.