Home / 155,664.60-233,569.80-80,869.20

Finding the Fourth Proportional to 155,664.60, 233,569.80 and 80,869.20

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Solution

The fourth proportional to 155,664.60, 233,569.80 and 80,869.20 is: 121,341.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,664.60 : 233,569.80 = 80,869.20 : x
  2. Step 2: Convert to fraction form
    155,664.60/233,569.80 = 80,869.20/x
  3. Step 3: Cross multiply
    155,664.60x = 233,569.80 × 80,869.20
  4. Step 4: Simplify right side
    155,664.60x = 18,888,602,870.16
  5. Step 5: Solve for x
    x = 18,888,602,870.16/155,664.60
  6. Step 6: Final answer
    x = 121,341.67

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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.