Home / 140,140.02-210,283.84-81,017.22

Finding the Fourth Proportional to 140,140.02, 210,283.84 and 81,017.22

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Solution

The fourth proportional to 140,140.02, 210,283.84 and 81,017.22 is: 121,568.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,140.02 : 210,283.84 = 81,017.22 : x
  2. Step 2: Convert to fraction form
    140,140.02/210,283.84 = 81,017.22/x
  3. Step 3: Cross multiply
    140,140.02x = 210,283.84 × 81,017.22
  4. Step 4: Simplify right side
    140,140.02x = 17,036,612,127.72
  5. Step 5: Solve for x
    x = 17,036,612,127.72/140,140.02
  6. Step 6: Final answer
    x = 121,568.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.