Home / 100,417.02-138,576.83-55,094.18

Finding the Fourth Proportional to 100,417.02, 138,576.83 and 55,094.18

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Solution

The fourth proportional to 100,417.02, 138,576.83 and 55,094.18 is: 76,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,417.02 : 138,576.83 = 55,094.18 : x
  2. Step 2: Convert to fraction form
    100,417.02/138,576.83 = 55,094.18/x
  3. Step 3: Cross multiply
    100,417.02x = 138,576.83 × 55,094.18
  4. Step 4: Simplify right side
    100,417.02x = 7,634,775,847.49
  5. Step 5: Solve for x
    x = 7,634,775,847.49/100,417.02
  6. Step 6: Final answer
    x = 76,030.70

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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.