Home / 131,543.07-181,529.22-71,113.77

Finding the Fourth Proportional to 131,543.07, 181,529.22 and 71,113.77

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Solution

The fourth proportional to 131,543.07, 181,529.22 and 71,113.77 is: 98,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,543.07 : 181,529.22 = 71,113.77 : x
  2. Step 2: Convert to fraction form
    131,543.07/181,529.22 = 71,113.77/x
  3. Step 3: Cross multiply
    131,543.07x = 181,529.22 × 71,113.77
  4. Step 4: Simplify right side
    131,543.07x = 12,909,227,199.36
  5. Step 5: Solve for x
    x = 12,909,227,199.36/131,543.07
  6. Step 6: Final answer
    x = 98,136.89

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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.