Home / 153,923.28-212,412.05-85,941.30

Finding the Fourth Proportional to 153,923.28, 212,412.05 and 85,941.30

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Solution

The fourth proportional to 153,923.28, 212,412.05 and 85,941.30 is: 118,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,923.28 : 212,412.05 = 85,941.30 : x
  2. Step 2: Convert to fraction form
    153,923.28/212,412.05 = 85,941.30/x
  3. Step 3: Cross multiply
    153,923.28x = 212,412.05 × 85,941.30
  4. Step 4: Simplify right side
    153,923.28x = 18,254,967,712.67
  5. Step 5: Solve for x
    x = 18,254,967,712.67/153,923.28
  6. Step 6: Final answer
    x = 118,597.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.