Home / 149,001.18-205,706.34-118,689.36

Finding the Fourth Proportional to 149,001.18, 205,706.34 and 118,689.36

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Solution

The fourth proportional to 149,001.18, 205,706.34 and 118,689.36 is: 163,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,001.18 : 205,706.34 = 118,689.36 : x
  2. Step 2: Convert to fraction form
    149,001.18/205,706.34 = 118,689.36/x
  3. Step 3: Cross multiply
    149,001.18x = 205,706.34 × 118,689.36
  4. Step 4: Simplify right side
    149,001.18x = 24,415,153,842.54
  5. Step 5: Solve for x
    x = 24,415,153,842.54/149,001.18
  6. Step 6: Final answer
    x = 163,858.80

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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.