Home / 112,701.20-155,527.88-61,018.80

Finding the Fourth Proportional to 112,701.20, 155,527.88 and 61,018.80

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Solution

The fourth proportional to 112,701.20, 155,527.88 and 61,018.80 is: 84,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,701.20 : 155,527.88 = 61,018.80 : x
  2. Step 2: Convert to fraction form
    112,701.20/155,527.88 = 61,018.80/x
  3. Step 3: Cross multiply
    112,701.20x = 155,527.88 × 61,018.80
  4. Step 4: Simplify right side
    112,701.20x = 9,490,124,299.05
  5. Step 5: Solve for x
    x = 9,490,124,299.05/112,701.20
  6. Step 6: Final answer
    x = 84,206.07

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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.