Home / 101,869.48-140,541.36-75,075.88

Finding the Fourth Proportional to 101,869.48, 140,541.36 and 75,075.88

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Solution

The fourth proportional to 101,869.48, 140,541.36 and 75,075.88 is: 103,576.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.48 : 140,541.36 = 75,075.88 : x
  2. Step 2: Convert to fraction form
    101,869.48/140,541.36 = 75,075.88/x
  3. Step 3: Cross multiply
    101,869.48x = 140,541.36 × 75,075.88
  4. Step 4: Simplify right side
    101,869.48x = 10,551,266,278.40
  5. Step 5: Solve for x
    x = 10,551,266,278.40/101,869.48
  6. Step 6: Final answer
    x = 103,576.32

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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.