Home / 97,178.04-134,139.24-56,904.75

Finding the Fourth Proportional to 97,178.04, 134,139.24 and 56,904.75

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Solution

The fourth proportional to 97,178.04, 134,139.24 and 56,904.75 is: 78,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,178.04 : 134,139.24 = 56,904.75 : x
  2. Step 2: Convert to fraction form
    97,178.04/134,139.24 = 56,904.75/x
  3. Step 3: Cross multiply
    97,178.04x = 134,139.24 × 56,904.75
  4. Step 4: Simplify right side
    97,178.04x = 7,633,159,917.39
  5. Step 5: Solve for x
    x = 7,633,159,917.39/97,178.04
  6. Step 6: Final answer
    x = 78,548.20

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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.