Home / 101,475.77-140,043.59-56,155.65

Finding the Fourth Proportional to 101,475.77, 140,043.59 and 56,155.65

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Solution

The fourth proportional to 101,475.77, 140,043.59 and 56,155.65 is: 77,498.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,475.77 : 140,043.59 = 56,155.65 : x
  2. Step 2: Convert to fraction form
    101,475.77/140,043.59 = 56,155.65/x
  3. Step 3: Cross multiply
    101,475.77x = 140,043.59 × 56,155.65
  4. Step 4: Simplify right side
    101,475.77x = 7,864,238,544.01
  5. Step 5: Solve for x
    x = 7,864,238,544.01/101,475.77
  6. Step 6: Final answer
    x = 77,498.69

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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.