Home / 101,248.02-139,524.93-72,900.18

Finding the Fourth Proportional to 101,248.02, 139,524.93 and 72,900.18

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Solution

The fourth proportional to 101,248.02, 139,524.93 and 72,900.18 is: 100,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,248.02 : 139,524.93 = 72,900.18 : x
  2. Step 2: Convert to fraction form
    101,248.02/139,524.93 = 72,900.18/x
  3. Step 3: Cross multiply
    101,248.02x = 139,524.93 × 72,900.18
  4. Step 4: Simplify right side
    101,248.02x = 10,171,392,511.49
  5. Step 5: Solve for x
    x = 10,171,392,511.49/101,248.02
  6. Step 6: Final answer
    x = 100,460.16

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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.