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Finding the Fourth Proportional to 100,283.95, 138,303.52 and 62,037.42

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Solution

The fourth proportional to 100,283.95, 138,303.52 and 62,037.42 is: 85,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,283.95 : 138,303.52 = 62,037.42 : x
  2. Step 2: Convert to fraction form
    100,283.95/138,303.52 = 62,037.42/x
  3. Step 3: Cross multiply
    100,283.95x = 138,303.52 × 62,037.42
  4. Step 4: Simplify right side
    100,283.95x = 8,579,993,402.62
  5. Step 5: Solve for x
    x = 8,579,993,402.62/100,283.95
  6. Step 6: Final answer
    x = 85,557.00

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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.