Home / 105,549.04-145,657.59-57,803.32

Finding the Fourth Proportional to 105,549.04, 145,657.59 and 57,803.32

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Solution

The fourth proportional to 105,549.04, 145,657.59 and 57,803.32 is: 79,768.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,549.04 : 145,657.59 = 57,803.32 : x
  2. Step 2: Convert to fraction form
    105,549.04/145,657.59 = 57,803.32/x
  3. Step 3: Cross multiply
    105,549.04x = 145,657.59 × 57,803.32
  4. Step 4: Simplify right side
    105,549.04x = 8,419,492,285.20
  5. Step 5: Solve for x
    x = 8,419,492,285.20/105,549.04
  6. Step 6: Final answer
    x = 79,768.53

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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.