Home / 144,259.45-199,075.12-87,689.05

Finding the Fourth Proportional to 144,259.45, 199,075.12 and 87,689.05

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Solution

The fourth proportional to 144,259.45, 199,075.12 and 87,689.05 is: 121,009.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,259.45 : 199,075.12 = 87,689.05 : x
  2. Step 2: Convert to fraction form
    144,259.45/199,075.12 = 87,689.05/x
  3. Step 3: Cross multiply
    144,259.45x = 199,075.12 × 87,689.05
  4. Step 4: Simplify right side
    144,259.45x = 17,456,708,151.44
  5. Step 5: Solve for x
    x = 17,456,708,151.44/144,259.45
  6. Step 6: Final answer
    x = 121,009.11

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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.