Home / 209,088.60-288,543.65-113,595.27

Finding the Fourth Proportional to 209,088.60, 288,543.65 and 113,595.27

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Solution

The fourth proportional to 209,088.60, 288,543.65 and 113,595.27 is: 156,762.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,088.60 : 288,543.65 = 113,595.27 : x
  2. Step 2: Convert to fraction form
    209,088.60/288,543.65 = 113,595.27/x
  3. Step 3: Cross multiply
    209,088.60x = 288,543.65 × 113,595.27
  4. Step 4: Simplify right side
    209,088.60x = 32,777,193,828.54
  5. Step 5: Solve for x
    x = 32,777,193,828.54/209,088.60
  6. Step 6: Final answer
    x = 156,762.22

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1.5x scale

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.