Home / 109,312.61-163,598.55-67,219.35

Finding the Fourth Proportional to 109,312.61, 163,598.55 and 67,219.35

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Solution

The fourth proportional to 109,312.61, 163,598.55 and 67,219.35 is: 100,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,312.61 : 163,598.55 = 67,219.35 : x
  2. Step 2: Convert to fraction form
    109,312.61/163,598.55 = 67,219.35/x
  3. Step 3: Cross multiply
    109,312.61x = 163,598.55 × 67,219.35
  4. Step 4: Simplify right side
    109,312.61x = 10,996,988,191.94
  5. Step 5: Solve for x
    x = 10,996,988,191.94/109,312.61
  6. Step 6: Final answer
    x = 100,601.28

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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.