Home / 88,188.45-121,698.91-47,903.50

Finding the Fourth Proportional to 88,188.45, 121,698.91 and 47,903.50

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Solution

The fourth proportional to 88,188.45, 121,698.91 and 47,903.50 is: 66,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,188.45 : 121,698.91 = 47,903.50 : x
  2. Step 2: Convert to fraction form
    88,188.45/121,698.91 = 47,903.50/x
  3. Step 3: Cross multiply
    88,188.45x = 121,698.91 × 47,903.50
  4. Step 4: Simplify right side
    88,188.45x = 5,829,803,677.73
  5. Step 5: Solve for x
    x = 5,829,803,677.73/88,188.45
  6. Step 6: Final answer
    x = 66,106.21

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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.