Home / 124,212.60-186,318.90-86,693.40

Finding the Fourth Proportional to 124,212.60, 186,318.90 and 86,693.40

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Solution

The fourth proportional to 124,212.60, 186,318.90 and 86,693.40 is: 130,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,212.60 : 186,318.90 = 86,693.40 : x
  2. Step 2: Convert to fraction form
    124,212.60/186,318.90 = 86,693.40/x
  3. Step 3: Cross multiply
    124,212.60x = 186,318.90 × 86,693.40
  4. Step 4: Simplify right side
    124,212.60x = 16,152,618,925.26
  5. Step 5: Solve for x
    x = 16,152,618,925.26/124,212.60
  6. Step 6: Final answer
    x = 130,040.10

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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.