Home / 100,088.42-138,117.96-59,824.40

Finding the Fourth Proportional to 100,088.42, 138,117.96 and 59,824.40

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Solution

The fourth proportional to 100,088.42, 138,117.96 and 59,824.40 is: 82,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,088.42 : 138,117.96 = 59,824.40 : x
  2. Step 2: Convert to fraction form
    100,088.42/138,117.96 = 59,824.40/x
  3. Step 3: Cross multiply
    100,088.42x = 138,117.96 × 59,824.40
  4. Step 4: Simplify right side
    100,088.42x = 8,262,823,395.63
  5. Step 5: Solve for x
    x = 8,262,823,395.63/100,088.42
  6. Step 6: Final answer
    x = 82,555.24

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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.