Home / 147,913.64-221,868.42-138,457.60

Finding the Fourth Proportional to 147,913.64, 221,868.42 and 138,457.60

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Solution

The fourth proportional to 147,913.64, 221,868.42 and 138,457.60 is: 207,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,913.64 : 221,868.42 = 138,457.60 : x
  2. Step 2: Convert to fraction form
    147,913.64/221,868.42 = 138,457.60/x
  3. Step 3: Cross multiply
    147,913.64x = 221,868.42 × 138,457.60
  4. Step 4: Simplify right side
    147,913.64x = 30,719,369,123.11
  5. Step 5: Solve for x
    x = 30,719,369,123.11/147,913.64
  6. Step 6: Final answer
    x = 207,684.49

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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.