Home / 209,070.30-288,541.40-124,187.37

Finding the Fourth Proportional to 209,070.30, 288,541.40 and 124,187.37

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Solution

The fourth proportional to 209,070.30, 288,541.40 and 124,187.37 is: 171,393.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,070.30 : 288,541.40 = 124,187.37 : x
  2. Step 2: Convert to fraction form
    209,070.30/288,541.40 = 124,187.37/x
  3. Step 3: Cross multiply
    209,070.30x = 288,541.40 × 124,187.37
  4. Step 4: Simplify right side
    209,070.30x = 35,833,197,602.12
  5. Step 5: Solve for x
    x = 35,833,197,602.12/209,070.30
  6. Step 6: Final answer
    x = 171,393.06

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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.