Home / 144,457.12-199,387.92-87,908.32

Finding the Fourth Proportional to 144,457.12, 199,387.92 and 87,908.32

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Solution

The fourth proportional to 144,457.12, 199,387.92 and 87,908.32 is: 121,336.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,457.12 : 199,387.92 = 87,908.32 : x
  2. Step 2: Convert to fraction form
    144,457.12/199,387.92 = 87,908.32/x
  3. Step 3: Cross multiply
    144,457.12x = 199,387.92 × 87,908.32
  4. Step 4: Simplify right side
    144,457.12x = 17,527,857,075.49
  5. Step 5: Solve for x
    x = 17,527,857,075.49/144,457.12
  6. Step 6: Final answer
    x = 121,336.06

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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.