Home / 134,178.16-185,151.72-77,607.76

Finding the Fourth Proportional to 134,178.16, 185,151.72 and 77,607.76

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Solution

The fourth proportional to 134,178.16, 185,151.72 and 77,607.76 is: 107,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,178.16 : 185,151.72 = 77,607.76 : x
  2. Step 2: Convert to fraction form
    134,178.16/185,151.72 = 77,607.76/x
  3. Step 3: Cross multiply
    134,178.16x = 185,151.72 × 77,607.76
  4. Step 4: Simplify right side
    134,178.16x = 14,369,210,249.35
  5. Step 5: Solve for x
    x = 14,369,210,249.35/134,178.16
  6. Step 6: Final answer
    x = 107,090.53

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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.