Home / 98,931.21-136,518.58-63,117.39

Finding the Fourth Proportional to 98,931.21, 136,518.58 and 63,117.39

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Solution

The fourth proportional to 98,931.21, 136,518.58 and 63,117.39 is: 87,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,931.21 : 136,518.58 = 63,117.39 : x
  2. Step 2: Convert to fraction form
    98,931.21/136,518.58 = 63,117.39/x
  3. Step 3: Cross multiply
    98,931.21x = 136,518.58 × 63,117.39
  4. Step 4: Simplify right side
    98,931.21x = 8,616,696,456.11
  5. Step 5: Solve for x
    x = 8,616,696,456.11/98,931.21
  6. Step 6: Final answer
    x = 87,097.86

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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.