Home / 144,518.04-216,799.56-85,396.32

Finding the Fourth Proportional to 144,518.04, 216,799.56 and 85,396.32

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Solution

The fourth proportional to 144,518.04, 216,799.56 and 85,396.32 is: 128,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518.04 : 216,799.56 = 85,396.32 : x
  2. Step 2: Convert to fraction form
    144,518.04/216,799.56 = 85,396.32/x
  3. Step 3: Cross multiply
    144,518.04x = 216,799.56 × 85,396.32
  4. Step 4: Simplify right side
    144,518.04x = 18,513,884,601.62
  5. Step 5: Solve for x
    x = 18,513,884,601.62/144,518.04
  6. Step 6: Final answer
    x = 128,107.78

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1.5x scale

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.