Home / 99,345.40-149,018.10-73,166.20

Finding the Fourth Proportional to 99,345.40, 149,018.10 and 73,166.20

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Solution

The fourth proportional to 99,345.40, 149,018.10 and 73,166.20 is: 109,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,345.40 : 149,018.10 = 73,166.20 : x
  2. Step 2: Convert to fraction form
    99,345.40/149,018.10 = 73,166.20/x
  3. Step 3: Cross multiply
    99,345.40x = 149,018.10 × 73,166.20
  4. Step 4: Simplify right side
    99,345.40x = 10,903,088,108.22
  5. Step 5: Solve for x
    x = 10,903,088,108.22/99,345.40
  6. Step 6: Final answer
    x = 109,749.30

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1.5x scale

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.