Home / 183,916.80-275,875.20-78,746.40

Finding the Fourth Proportional to 183,916.80, 275,875.20 and 78,746.40

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Solution

The fourth proportional to 183,916.80, 275,875.20 and 78,746.40 is: 118,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,916.80 : 275,875.20 = 78,746.40 : x
  2. Step 2: Convert to fraction form
    183,916.80/275,875.20 = 78,746.40/x
  3. Step 3: Cross multiply
    183,916.80x = 275,875.20 × 78,746.40
  4. Step 4: Simplify right side
    183,916.80x = 21,724,178,849.28
  5. Step 5: Solve for x
    x = 21,724,178,849.28/183,916.80
  6. Step 6: Final answer
    x = 118,119.60

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1.5x scale

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.