Home / 109,370.55-150,934.29-61,621.05

Finding the Fourth Proportional to 109,370.55, 150,934.29 and 61,621.05

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Solution

The fourth proportional to 109,370.55, 150,934.29 and 61,621.05 is: 85,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,370.55 : 150,934.29 = 61,621.05 : x
  2. Step 2: Convert to fraction form
    109,370.55/150,934.29 = 61,621.05/x
  3. Step 3: Cross multiply
    109,370.55x = 150,934.29 × 61,621.05
  4. Step 4: Simplify right side
    109,370.55x = 9,300,729,430.80
  5. Step 5: Solve for x
    x = 9,300,729,430.80/109,370.55
  6. Step 6: Final answer
    x = 85,038.70

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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.