Home / 100,913.04-139,261.14-55,590.08

Finding the Fourth Proportional to 100,913.04, 139,261.14 and 55,590.08

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Solution

The fourth proportional to 100,913.04, 139,261.14 and 55,590.08 is: 76,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,913.04 : 139,261.14 = 55,590.08 : x
  2. Step 2: Convert to fraction form
    100,913.04/139,261.14 = 55,590.08/x
  3. Step 3: Cross multiply
    100,913.04x = 139,261.14 × 55,590.08
  4. Step 4: Simplify right side
    100,913.04x = 7,741,537,217.19
  5. Step 5: Solve for x
    x = 7,741,537,217.19/100,913.04
  6. Step 6: Final answer
    x = 76,714.93

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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.