Home / 205,031.60-307,547.40-125,889.20

Finding the Fourth Proportional to 205,031.60, 307,547.40 and 125,889.20

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Solution

The fourth proportional to 205,031.60, 307,547.40 and 125,889.20 is: 188,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,031.60 : 307,547.40 = 125,889.20 : x
  2. Step 2: Convert to fraction form
    205,031.60/307,547.40 = 125,889.20/x
  3. Step 3: Cross multiply
    205,031.60x = 307,547.40 × 125,889.20
  4. Step 4: Simplify right side
    205,031.60x = 38,716,896,148.08
  5. Step 5: Solve for x
    x = 38,716,896,148.08/205,031.60
  6. Step 6: Final answer
    x = 188,833.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.