Home / 147,816.60-221,864.10-77,746.20

Finding the Fourth Proportional to 147,816.60, 221,864.10 and 77,746.20

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Solution

The fourth proportional to 147,816.60, 221,864.10 and 77,746.20 is: 116,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,816.60 : 221,864.10 = 77,746.20 : x
  2. Step 2: Convert to fraction form
    147,816.60/221,864.10 = 77,746.20/x
  3. Step 3: Cross multiply
    147,816.60x = 221,864.10 × 77,746.20
  4. Step 4: Simplify right side
    147,816.60x = 17,249,090,691.42
  5. Step 5: Solve for x
    x = 17,249,090,691.42/147,816.60
  6. Step 6: Final answer
    x = 116,692.51

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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.