Home / 155,541.60-233,312.40-76,809.60

Finding the Fourth Proportional to 155,541.60, 233,312.40 and 76,809.60

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Solution

The fourth proportional to 155,541.60, 233,312.40 and 76,809.60 is: 115,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,541.60 : 233,312.40 = 76,809.60 : x
  2. Step 2: Convert to fraction form
    155,541.60/233,312.40 = 76,809.60/x
  3. Step 3: Cross multiply
    155,541.60x = 233,312.40 × 76,809.60
  4. Step 4: Simplify right side
    155,541.60x = 17,920,632,119.04
  5. Step 5: Solve for x
    x = 17,920,632,119.04/155,541.60
  6. Step 6: Final answer
    x = 115,214.40

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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.