Home / 145,085.80-199,889.05-112,267.38

Finding the Fourth Proportional to 145,085.80, 199,889.05 and 112,267.38

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Solution

The fourth proportional to 145,085.80, 199,889.05 and 112,267.38 is: 154,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,085.80 : 199,889.05 = 112,267.38 : x
  2. Step 2: Convert to fraction form
    145,085.80/199,889.05 = 112,267.38/x
  3. Step 3: Cross multiply
    145,085.80x = 199,889.05 × 112,267.38
  4. Step 4: Simplify right side
    145,085.80x = 22,441,018,934.74
  5. Step 5: Solve for x
    x = 22,441,018,934.74/145,085.80
  6. Step 6: Final answer
    x = 154,674.13

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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.