Home / 134,106.84-185,078.52-86,459.40

Finding the Fourth Proportional to 134,106.84, 185,078.52 and 86,459.40

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Solution

The fourth proportional to 134,106.84, 185,078.52 and 86,459.40 is: 119,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,106.84 : 185,078.52 = 86,459.40 : x
  2. Step 2: Convert to fraction form
    134,106.84/185,078.52 = 86,459.40/x
  3. Step 3: Cross multiply
    134,106.84x = 185,078.52 × 86,459.40
  4. Step 4: Simplify right side
    134,106.84x = 16,001,777,792.09
  5. Step 5: Solve for x
    x = 16,001,777,792.09/134,106.84
  6. Step 6: Final answer
    x = 119,321.12

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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.