Home / 212,345.55-318,519.95-77,506.27

Finding the Fourth Proportional to 212,345.55, 318,519.95 and 77,506.27

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Solution

The fourth proportional to 212,345.55, 318,519.95 and 77,506.27 is: 116,259.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,345.55 : 318,519.95 = 77,506.27 : x
  2. Step 2: Convert to fraction form
    212,345.55/318,519.95 = 77,506.27/x
  3. Step 3: Cross multiply
    212,345.55x = 318,519.95 × 77,506.27
  4. Step 4: Simplify right side
    212,345.55x = 24,687,292,061.26
  5. Step 5: Solve for x
    x = 24,687,292,061.26/212,345.55
  6. Step 6: Final answer
    x = 116,259.99

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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.