Home / 103,114.40-154,671.48-28,235.12

Finding the Fourth Proportional to 103,114.40, 154,671.48 and 28,235.12

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Solution

The fourth proportional to 103,114.40, 154,671.48 and 28,235.12 is: 42,352.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,114.40 : 154,671.48 = 28,235.12 : x
  2. Step 2: Convert to fraction form
    103,114.40/154,671.48 = 28,235.12/x
  3. Step 3: Cross multiply
    103,114.40x = 154,671.48 × 28,235.12
  4. Step 4: Simplify right side
    103,114.40x = 4,367,167,798.38
  5. Step 5: Solve for x
    x = 4,367,167,798.38/103,114.40
  6. Step 6: Final answer
    x = 42,352.65

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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.