Home / 144,528.54-216,260.64-87,398.70

Finding the Fourth Proportional to 144,528.54, 216,260.64 and 87,398.70

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Solution

The fourth proportional to 144,528.54, 216,260.64 and 87,398.70 is: 130,776.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,528.54 : 216,260.64 = 87,398.70 : x
  2. Step 2: Convert to fraction form
    144,528.54/216,260.64 = 87,398.70/x
  3. Step 3: Cross multiply
    144,528.54x = 216,260.64 × 87,398.70
  4. Step 4: Simplify right side
    144,528.54x = 18,900,898,797.17
  5. Step 5: Solve for x
    x = 18,900,898,797.17/144,528.54
  6. Step 6: Final answer
    x = 130,776.24

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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.