Home / 131,827.50-181,931.67-81,536.22

Finding the Fourth Proportional to 131,827.50, 181,931.67 and 81,536.22

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Solution

The fourth proportional to 131,827.50, 181,931.67 and 81,536.22 is: 112,526.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,827.50 : 181,931.67 = 81,536.22 : x
  2. Step 2: Convert to fraction form
    131,827.50/181,931.67 = 81,536.22/x
  3. Step 3: Cross multiply
    131,827.50x = 181,931.67 × 81,536.22
  4. Step 4: Simplify right side
    131,827.50x = 14,834,020,670.09
  5. Step 5: Solve for x
    x = 14,834,020,670.09/131,827.50
  6. Step 6: Final answer
    x = 112,526.00

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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.