Home / 155,107.22-214,014.75-90,547.15

Finding the Fourth Proportional to 155,107.22, 214,014.75 and 90,547.15

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Solution

The fourth proportional to 155,107.22, 214,014.75 and 90,547.15 is: 124,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,107.22 : 214,014.75 = 90,547.15 : x
  2. Step 2: Convert to fraction form
    155,107.22/214,014.75 = 90,547.15/x
  3. Step 3: Cross multiply
    155,107.22x = 214,014.75 × 90,547.15
  4. Step 4: Simplify right side
    155,107.22x = 19,378,426,373.39
  5. Step 5: Solve for x
    x = 19,378,426,373.39/155,107.22
  6. Step 6: Final answer
    x = 124,935.69

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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.