Home / 137,728.04-190,068.48-77,302.44

Finding the Fourth Proportional to 137,728.04, 190,068.48 and 77,302.44

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Solution

The fourth proportional to 137,728.04, 190,068.48 and 77,302.44 is: 106,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,728.04 : 190,068.48 = 77,302.44 : x
  2. Step 2: Convert to fraction form
    137,728.04/190,068.48 = 77,302.44/x
  3. Step 3: Cross multiply
    137,728.04x = 190,068.48 × 77,302.44
  4. Step 4: Simplify right side
    137,728.04x = 14,692,757,271.09
  5. Step 5: Solve for x
    x = 14,692,757,271.09/137,728.04
  6. Step 6: Final answer
    x = 106,679.49

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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.