Home / 109,981.50-151,739.16-61,576.28

Finding the Fourth Proportional to 109,981.50, 151,739.16 and 61,576.28

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Solution

The fourth proportional to 109,981.50, 151,739.16 and 61,576.28 is: 84,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,981.50 : 151,739.16 = 61,576.28 : x
  2. Step 2: Convert to fraction form
    109,981.50/151,739.16 = 61,576.28/x
  3. Step 3: Cross multiply
    109,981.50x = 151,739.16 × 61,576.28
  4. Step 4: Simplify right side
    109,981.50x = 9,343,533,003.12
  5. Step 5: Solve for x
    x = 9,343,533,003.12/109,981.50
  6. Step 6: Final answer
    x = 84,955.50

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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.