Home / 98,334.36-147,390.02-86,465.22

Finding the Fourth Proportional to 98,334.36, 147,390.02 and 86,465.22

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Solution

The fourth proportional to 98,334.36, 147,390.02 and 86,465.22 is: 129,599.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,334.36 : 147,390.02 = 86,465.22 : x
  2. Step 2: Convert to fraction form
    98,334.36/147,390.02 = 86,465.22/x
  3. Step 3: Cross multiply
    98,334.36x = 147,390.02 × 86,465.22
  4. Step 4: Simplify right side
    98,334.36x = 12,744,110,072.78
  5. Step 5: Solve for x
    x = 12,744,110,072.78/98,334.36
  6. Step 6: Final answer
    x = 129,599.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.