Home / 212,402.55-318,557.60-70,214.23

Finding the Fourth Proportional to 212,402.55, 318,557.60 and 70,214.23

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Solution

The fourth proportional to 212,402.55, 318,557.60 and 70,214.23 is: 105,306.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,402.55 : 318,557.60 = 70,214.23 : x
  2. Step 2: Convert to fraction form
    212,402.55/318,557.60 = 70,214.23/x
  3. Step 3: Cross multiply
    212,402.55x = 318,557.60 × 70,214.23
  4. Step 4: Simplify right side
    212,402.55x = 22,367,275,798.25
  5. Step 5: Solve for x
    x = 22,367,275,798.25/212,402.55
  6. Step 6: Final answer
    x = 105,306.06

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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.