Home / 202,031.98-278,802.93-111,387.58

Finding the Fourth Proportional to 202,031.98, 278,802.93 and 111,387.58

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Solution

The fourth proportional to 202,031.98, 278,802.93 and 111,387.58 is: 153,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,031.98 : 278,802.93 = 111,387.58 : x
  2. Step 2: Convert to fraction form
    202,031.98/278,802.93 = 111,387.58/x
  3. Step 3: Cross multiply
    202,031.98x = 278,802.93 × 111,387.58
  4. Step 4: Simplify right side
    202,031.98x = 31,055,183,669.61
  5. Step 5: Solve for x
    x = 31,055,183,669.61/202,031.98
  6. Step 6: Final answer
    x = 153,714.20

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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.