Home / 118,235.18-163,163.21-64,521.11

Finding the Fourth Proportional to 118,235.18, 163,163.21 and 64,521.11

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Solution

The fourth proportional to 118,235.18, 163,163.21 and 64,521.11 is: 89,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,235.18 : 163,163.21 = 64,521.11 : x
  2. Step 2: Convert to fraction form
    118,235.18/163,163.21 = 64,521.11/x
  3. Step 3: Cross multiply
    118,235.18x = 163,163.21 × 64,521.11
  4. Step 4: Simplify right side
    118,235.18x = 10,527,471,420.36
  5. Step 5: Solve for x
    x = 10,527,471,420.36/118,235.18
  6. Step 6: Final answer
    x = 89,038.40

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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.