Home / 144,159.30-216,238.44-38,978.28

Finding the Fourth Proportional to 144,159.30, 216,238.44 and 38,978.28

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Solution

The fourth proportional to 144,159.30, 216,238.44 and 38,978.28 is: 58,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,159.30 : 216,238.44 = 38,978.28 : x
  2. Step 2: Convert to fraction form
    144,159.30/216,238.44 = 38,978.28/x
  3. Step 3: Cross multiply
    144,159.30x = 216,238.44 × 38,978.28
  4. Step 4: Simplify right side
    144,159.30x = 8,428,602,461.08
  5. Step 5: Solve for x
    x = 8,428,602,461.08/144,159.30
  6. Step 6: Final answer
    x = 58,467.28

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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.