Home / 137,810.30-190,166.54-77,376.20

Finding the Fourth Proportional to 137,810.30, 190,166.54 and 77,376.20

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Solution

The fourth proportional to 137,810.30, 190,166.54 and 77,376.20 is: 106,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,810.30 : 190,166.54 = 77,376.20 : x
  2. Step 2: Convert to fraction form
    137,810.30/190,166.54 = 77,376.20/x
  3. Step 3: Cross multiply
    137,810.30x = 190,166.54 × 77,376.20
  4. Step 4: Simplify right side
    137,810.30x = 14,714,364,232.35
  5. Step 5: Solve for x
    x = 14,714,364,232.35/137,810.30
  6. Step 6: Final answer
    x = 106,772.60

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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.