Home / 154,657.12-231,981.36-49,482.40

Finding the Fourth Proportional to 154,657.12, 231,981.36 and 49,482.40

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Solution

The fourth proportional to 154,657.12, 231,981.36 and 49,482.40 is: 74,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,657.12 : 231,981.36 = 49,482.40 : x
  2. Step 2: Convert to fraction form
    154,657.12/231,981.36 = 49,482.40/x
  3. Step 3: Cross multiply
    154,657.12x = 231,981.36 × 49,482.40
  4. Step 4: Simplify right side
    154,657.12x = 11,478,994,448.06
  5. Step 5: Solve for x
    x = 11,478,994,448.06/154,657.12
  6. Step 6: Final answer
    x = 74,222.22

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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.