Home / 209,161.77-288,642.45-118,535.01

Finding the Fourth Proportional to 209,161.77, 288,642.45 and 118,535.01

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Solution

The fourth proportional to 209,161.77, 288,642.45 and 118,535.01 is: 163,577.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,161.77 : 288,642.45 = 118,535.01 : x
  2. Step 2: Convert to fraction form
    209,161.77/288,642.45 = 118,535.01/x
  3. Step 3: Cross multiply
    209,161.77x = 288,642.45 × 118,535.01
  4. Step 4: Simplify right side
    209,161.77x = 34,214,235,697.17
  5. Step 5: Solve for x
    x = 34,214,235,697.17/209,161.77
  6. Step 6: Final answer
    x = 163,577.86

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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.