Home / 105,066.30-157,426.65-87,440.70

Finding the Fourth Proportional to 105,066.30, 157,426.65 and 87,440.70

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Solution

The fourth proportional to 105,066.30, 157,426.65 and 87,440.70 is: 131,017.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,066.30 : 157,426.65 = 87,440.70 : x
  2. Step 2: Convert to fraction form
    105,066.30/157,426.65 = 87,440.70/x
  3. Step 3: Cross multiply
    105,066.30x = 157,426.65 × 87,440.70
  4. Step 4: Simplify right side
    105,066.30x = 13,765,496,474.66
  5. Step 5: Solve for x
    x = 13,765,496,474.66/105,066.30
  6. Step 6: Final answer
    x = 131,017.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.