Home / 105,352.35-145,503.61-97,380.74

Finding the Fourth Proportional to 105,352.35, 145,503.61 and 97,380.74

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Solution

The fourth proportional to 105,352.35, 145,503.61 and 97,380.74 is: 134,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,352.35 : 145,503.61 = 97,380.74 : x
  2. Step 2: Convert to fraction form
    105,352.35/145,503.61 = 97,380.74/x
  3. Step 3: Cross multiply
    105,352.35x = 145,503.61 × 97,380.74
  4. Step 4: Simplify right side
    105,352.35x = 14,169,248,515.92
  5. Step 5: Solve for x
    x = 14,169,248,515.92/105,352.35
  6. Step 6: Final answer
    x = 134,493.90

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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.