Home / 158,599.07-218,834.93-90,638.36

Finding the Fourth Proportional to 158,599.07, 218,834.93 and 90,638.36

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Solution

The fourth proportional to 158,599.07, 218,834.93 and 90,638.36 is: 125,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,599.07 : 218,834.93 = 90,638.36 : x
  2. Step 2: Convert to fraction form
    158,599.07/218,834.93 = 90,638.36/x
  3. Step 3: Cross multiply
    158,599.07x = 218,834.93 × 90,638.36
  4. Step 4: Simplify right side
    158,599.07x = 19,834,838,712.72
  5. Step 5: Solve for x
    x = 19,834,838,712.72/158,599.07
  6. Step 6: Final answer
    x = 125,062.77

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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.