Home / 130,502.81-180,106.51-73,151.87

Finding the Fourth Proportional to 130,502.81, 180,106.51 and 73,151.87

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Solution

The fourth proportional to 130,502.81, 180,106.51 and 73,151.87 is: 100,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,502.81 : 180,106.51 = 73,151.87 : x
  2. Step 2: Convert to fraction form
    130,502.81/180,106.51 = 73,151.87/x
  3. Step 3: Cross multiply
    130,502.81x = 180,106.51 × 73,151.87
  4. Step 4: Simplify right side
    130,502.81x = 13,175,127,105.14
  5. Step 5: Solve for x
    x = 13,175,127,105.14/130,502.81
  6. Step 6: Final answer
    x = 100,956.66

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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.