Home / 153,143.42-211,327.50-92,747.60

Finding the Fourth Proportional to 153,143.42, 211,327.50 and 92,747.60

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Solution

The fourth proportional to 153,143.42, 211,327.50 and 92,747.60 is: 127,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,143.42 : 211,327.50 = 92,747.60 : x
  2. Step 2: Convert to fraction form
    153,143.42/211,327.50 = 92,747.60/x
  3. Step 3: Cross multiply
    153,143.42x = 211,327.50 × 92,747.60
  4. Step 4: Simplify right side
    153,143.42x = 19,600,118,439
  5. Step 5: Solve for x
    x = 19,600,118,439/153,143.42
  6. Step 6: Final answer
    x = 127,985.38

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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.