Home / 101,647.02-140,275.96-56,320.76

Finding the Fourth Proportional to 101,647.02, 140,275.96 and 56,320.76

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Solution

The fourth proportional to 101,647.02, 140,275.96 and 56,320.76 is: 77,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,647.02 : 140,275.96 = 56,320.76 : x
  2. Step 2: Convert to fraction form
    101,647.02/140,275.96 = 56,320.76/x
  3. Step 3: Cross multiply
    101,647.02x = 140,275.96 × 56,320.76
  4. Step 4: Simplify right side
    101,647.02x = 7,900,448,395.33
  5. Step 5: Solve for x
    x = 7,900,448,395.33/101,647.02
  6. Step 6: Final answer
    x = 77,724.35

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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.