Home / 105,548.04-145,656.21-57,802.32

Finding the Fourth Proportional to 105,548.04, 145,656.21 and 57,802.32

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Solution

The fourth proportional to 105,548.04, 145,656.21 and 57,802.32 is: 79,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,548.04 : 145,656.21 = 57,802.32 : x
  2. Step 2: Convert to fraction form
    105,548.04/145,656.21 = 57,802.32/x
  3. Step 3: Cross multiply
    105,548.04x = 145,656.21 × 57,802.32
  4. Step 4: Simplify right side
    105,548.04x = 8,419,266,860.41
  5. Step 5: Solve for x
    x = 8,419,266,860.41/105,548.04
  6. Step 6: Final answer
    x = 79,767.15

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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.