Home / 107,389.12-148,129.98-69,199.24

Finding the Fourth Proportional to 107,389.12, 148,129.98 and 69,199.24

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Solution

The fourth proportional to 107,389.12, 148,129.98 and 69,199.24 is: 95,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,389.12 : 148,129.98 = 69,199.24 : x
  2. Step 2: Convert to fraction form
    107,389.12/148,129.98 = 69,199.24/x
  3. Step 3: Cross multiply
    107,389.12x = 148,129.98 × 69,199.24
  4. Step 4: Simplify right side
    107,389.12x = 10,250,482,037.22
  5. Step 5: Solve for x
    x = 10,250,482,037.22/107,389.12
  6. Step 6: Final answer
    x = 95,451.77

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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.