Home / 145,185.18-200,355.84-81,523.23

Finding the Fourth Proportional to 145,185.18, 200,355.84 and 81,523.23

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Solution

The fourth proportional to 145,185.18, 200,355.84 and 81,523.23 is: 112,502.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,185.18 : 200,355.84 = 81,523.23 : x
  2. Step 2: Convert to fraction form
    145,185.18/200,355.84 = 81,523.23/x
  3. Step 3: Cross multiply
    145,185.18x = 200,355.84 × 81,523.23
  4. Step 4: Simplify right side
    145,185.18x = 16,333,655,226.16
  5. Step 5: Solve for x
    x = 16,333,655,226.16/145,185.18
  6. Step 6: Final answer
    x = 112,502.22

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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.