Home / 130,056.52-179,490.30-81,666.41

Finding the Fourth Proportional to 130,056.52, 179,490.30 and 81,666.41

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Solution

The fourth proportional to 130,056.52, 179,490.30 and 81,666.41 is: 112,707.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,056.52 : 179,490.30 = 81,666.41 : x
  2. Step 2: Convert to fraction form
    130,056.52/179,490.30 = 81,666.41/x
  3. Step 3: Cross multiply
    130,056.52x = 179,490.30 × 81,666.41
  4. Step 4: Simplify right side
    130,056.52x = 14,658,328,430.82
  5. Step 5: Solve for x
    x = 14,658,328,430.82/130,056.52
  6. Step 6: Final answer
    x = 112,707.38

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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.