Home / 151,053.51-208,394.84-86,488.23

Finding the Fourth Proportional to 151,053.51, 208,394.84 and 86,488.23

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Solution

The fourth proportional to 151,053.51, 208,394.84 and 86,488.23 is: 119,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,053.51 : 208,394.84 = 86,488.23 : x
  2. Step 2: Convert to fraction form
    151,053.51/208,394.84 = 86,488.23/x
  3. Step 3: Cross multiply
    151,053.51x = 208,394.84 × 86,488.23
  4. Step 4: Simplify right side
    151,053.51x = 18,023,700,420.29
  5. Step 5: Solve for x
    x = 18,023,700,420.29/151,053.51
  6. Step 6: Final answer
    x = 119,319.97

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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.