Home / 138,688.10-208,032.15-58,738.67

Finding the Fourth Proportional to 138,688.10, 208,032.15 and 58,738.67

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Solution

The fourth proportional to 138,688.10, 208,032.15 and 58,738.67 is: 88,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,688.10 : 208,032.15 = 58,738.67 : x
  2. Step 2: Convert to fraction form
    138,688.10/208,032.15 = 58,738.67/x
  3. Step 3: Cross multiply
    138,688.10x = 208,032.15 × 58,738.67
  4. Step 4: Simplify right side
    138,688.10x = 12,219,531,808.24
  5. Step 5: Solve for x
    x = 12,219,531,808.24/138,688.10
  6. Step 6: Final answer
    x = 88,108.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.