Home / 147,909.36-221,820.24-42,729.28

Finding the Fourth Proportional to 147,909.36, 221,820.24 and 42,729.28

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Solution

The fourth proportional to 147,909.36, 221,820.24 and 42,729.28 is: 64,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,909.36 : 221,820.24 = 42,729.28 : x
  2. Step 2: Convert to fraction form
    147,909.36/221,820.24 = 42,729.28/x
  3. Step 3: Cross multiply
    147,909.36x = 221,820.24 × 42,729.28
  4. Step 4: Simplify right side
    147,909.36x = 9,478,219,144.63
  5. Step 5: Solve for x
    x = 9,478,219,144.63/147,909.36
  6. Step 6: Final answer
    x = 64,081.27

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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.