Home / 118,407.18-163,403.82-70,688.46

Finding the Fourth Proportional to 118,407.18, 163,403.82 and 70,688.46

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Solution

The fourth proportional to 118,407.18, 163,403.82 and 70,688.46 is: 97,551.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,407.18 : 163,403.82 = 70,688.46 : x
  2. Step 2: Convert to fraction form
    118,407.18/163,403.82 = 70,688.46/x
  3. Step 3: Cross multiply
    118,407.18x = 163,403.82 × 70,688.46
  4. Step 4: Simplify right side
    118,407.18x = 11,550,764,393.92
  5. Step 5: Solve for x
    x = 11,550,764,393.92/118,407.18
  6. Step 6: Final answer
    x = 97,551.22

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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.