Home / 212,461.02-318,691.56-70,268.13

Finding the Fourth Proportional to 212,461.02, 318,691.56 and 70,268.13

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Solution

The fourth proportional to 212,461.02, 318,691.56 and 70,268.13 is: 105,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,461.02 : 318,691.56 = 70,268.13 : x
  2. Step 2: Convert to fraction form
    212,461.02/318,691.56 = 70,268.13/x
  3. Step 3: Cross multiply
    212,461.02x = 318,691.56 × 70,268.13
  4. Step 4: Simplify right side
    212,461.02x = 22,393,859,967.98
  5. Step 5: Solve for x
    x = 22,393,859,967.98/212,461.02
  6. Step 6: Final answer
    x = 105,402.20

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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.