Home / 134,151.12-185,161.96-77,554.32

Finding the Fourth Proportional to 134,151.12, 185,161.96 and 77,554.32

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Solution

The fourth proportional to 134,151.12, 185,161.96 and 77,554.32 is: 107,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,151.12 : 185,161.96 = 77,554.32 : x
  2. Step 2: Convert to fraction form
    134,151.12/185,161.96 = 77,554.32/x
  3. Step 3: Cross multiply
    134,151.12x = 185,161.96 × 77,554.32
  4. Step 4: Simplify right side
    134,151.12x = 14,360,109,897.67
  5. Step 5: Solve for x
    x = 14,360,109,897.67/134,151.12
  6. Step 6: Final answer
    x = 107,044.28

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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.