Home / 163,141.48-225,113.70-91,518.76

Finding the Fourth Proportional to 163,141.48, 225,113.70 and 91,518.76

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Solution

The fourth proportional to 163,141.48, 225,113.70 and 91,518.76 is: 126,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,141.48 : 225,113.70 = 91,518.76 : x
  2. Step 2: Convert to fraction form
    163,141.48/225,113.70 = 91,518.76/x
  3. Step 3: Cross multiply
    163,141.48x = 225,113.70 × 91,518.76
  4. Step 4: Simplify right side
    163,141.48x = 20,602,126,683.01
  5. Step 5: Solve for x
    x = 20,602,126,683.01/163,141.48
  6. Step 6: Final answer
    x = 126,283.80

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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.