Home / 147,643.40-221,421.90-52,862.60

Finding the Fourth Proportional to 147,643.40, 221,421.90 and 52,862.60

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Solution

The fourth proportional to 147,643.40, 221,421.90 and 52,862.60 is: 79,278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,643.40 : 221,421.90 = 52,862.60 : x
  2. Step 2: Convert to fraction form
    147,643.40/221,421.90 = 52,862.60/x
  3. Step 3: Cross multiply
    147,643.40x = 221,421.90 × 52,862.60
  4. Step 4: Simplify right side
    147,643.40x = 11,704,937,330.94
  5. Step 5: Solve for x
    x = 11,704,937,330.94/147,643.40
  6. Step 6: Final answer
    x = 79,278.43

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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.