Home / 155,756.16-214,911.36-99,146.88

Finding the Fourth Proportional to 155,756.16, 214,911.36 and 99,146.88

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Solution

The fourth proportional to 155,756.16, 214,911.36 and 99,146.88 is: 136,802.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,756.16 : 214,911.36 = 99,146.88 : x
  2. Step 2: Convert to fraction form
    155,756.16/214,911.36 = 99,146.88/x
  3. Step 3: Cross multiply
    155,756.16x = 214,911.36 × 99,146.88
  4. Step 4: Simplify right side
    155,756.16x = 21,307,790,820.56
  5. Step 5: Solve for x
    x = 21,307,790,820.56/155,756.16
  6. Step 6: Final answer
    x = 136,802.24

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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.