Home / 97,800.12-134,967.38-55,357.74

Finding the Fourth Proportional to 97,800.12, 134,967.38 and 55,357.74

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Solution

The fourth proportional to 97,800.12, 134,967.38 and 55,357.74 is: 76,395.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,800.12 : 134,967.38 = 55,357.74 : x
  2. Step 2: Convert to fraction form
    97,800.12/134,967.38 = 55,357.74/x
  3. Step 3: Cross multiply
    97,800.12x = 134,967.38 × 55,357.74
  4. Step 4: Simplify right side
    97,800.12x = 7,471,489,130.52
  5. Step 5: Solve for x
    x = 7,471,489,130.52/97,800.12
  6. Step 6: Final answer
    x = 76,395.50

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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.