Home / 118,910.40-163,973.85-83,087.34

Finding the Fourth Proportional to 118,910.40, 163,973.85 and 83,087.34

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Solution

The fourth proportional to 118,910.40, 163,973.85 and 83,087.34 is: 114,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,910.40 : 163,973.85 = 83,087.34 : x
  2. Step 2: Convert to fraction form
    118,910.40/163,973.85 = 83,087.34/x
  3. Step 3: Cross multiply
    118,910.40x = 163,973.85 × 83,087.34
  4. Step 4: Simplify right side
    118,910.40x = 13,624,151,026.06
  5. Step 5: Solve for x
    x = 13,624,151,026.06/118,910.40
  6. Step 6: Final answer
    x = 114,574.93

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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.