Home / 209,130.61-288,602.06-113,637.30

Finding the Fourth Proportional to 209,130.61, 288,602.06 and 113,637.30

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Solution

The fourth proportional to 209,130.61, 288,602.06 and 113,637.30 is: 156,820.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.61 : 288,602.06 = 113,637.30 : x
  2. Step 2: Convert to fraction form
    209,130.61/288,602.06 = 113,637.30/x
  3. Step 3: Cross multiply
    209,130.61x = 288,602.06 × 113,637.30
  4. Step 4: Simplify right side
    209,130.61x = 32,795,956,861.64
  5. Step 5: Solve for x
    x = 32,795,956,861.64/209,130.61
  6. Step 6: Final answer
    x = 156,820.46

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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.