Home / 115,117.22-158,855.55-63,432.69

Finding the Fourth Proportional to 115,117.22, 158,855.55 and 63,432.69

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Solution

The fourth proportional to 115,117.22, 158,855.55 and 63,432.69 is: 87,533.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,117.22 : 158,855.55 = 63,432.69 : x
  2. Step 2: Convert to fraction form
    115,117.22/158,855.55 = 63,432.69/x
  3. Step 3: Cross multiply
    115,117.22x = 158,855.55 × 63,432.69
  4. Step 4: Simplify right side
    115,117.22x = 10,076,634,857.93
  5. Step 5: Solve for x
    x = 10,076,634,857.93/115,117.22
  6. Step 6: Final answer
    x = 87,533.69

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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.