Home / 102,041.17-140,767.81-87,869.41

Finding the Fourth Proportional to 102,041.17, 140,767.81 and 87,869.41

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Solution

The fourth proportional to 102,041.17, 140,767.81 and 87,869.41 is: 121,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,041.17 : 140,767.81 = 87,869.41 : x
  2. Step 2: Convert to fraction form
    102,041.17/140,767.81 = 87,869.41/x
  3. Step 3: Cross multiply
    102,041.17x = 140,767.81 × 87,869.41
  4. Step 4: Simplify right side
    102,041.17x = 12,369,184,411.69
  5. Step 5: Solve for x
    x = 12,369,184,411.69/102,041.17
  6. Step 6: Final answer
    x = 121,217.59

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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.