Home / 131,602.72-181,612.84-75,017.74

Finding the Fourth Proportional to 131,602.72, 181,612.84 and 75,017.74

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Solution

The fourth proportional to 131,602.72, 181,612.84 and 75,017.74 is: 103,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,602.72 : 181,612.84 = 75,017.74 : x
  2. Step 2: Convert to fraction form
    131,602.72/181,612.84 = 75,017.74/x
  3. Step 3: Cross multiply
    131,602.72x = 181,612.84 × 75,017.74
  4. Step 4: Simplify right side
    131,602.72x = 13,624,184,811.78
  5. Step 5: Solve for x
    x = 13,624,184,811.78/131,602.72
  6. Step 6: Final answer
    x = 103,525.10

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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.