Home / 112,178.28-154,803.52-61,877.28

Finding the Fourth Proportional to 112,178.28, 154,803.52 and 61,877.28

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Solution

The fourth proportional to 112,178.28, 154,803.52 and 61,877.28 is: 85,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,178.28 : 154,803.52 = 61,877.28 : x
  2. Step 2: Convert to fraction form
    112,178.28/154,803.52 = 61,877.28/x
  3. Step 3: Cross multiply
    112,178.28x = 154,803.52 × 61,877.28
  4. Step 4: Simplify right side
    112,178.28x = 9,578,820,752.03
  5. Step 5: Solve for x
    x = 9,578,820,752.03/112,178.28
  6. Step 6: Final answer
    x = 85,389.26

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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.