Home / 115,477.08-159,355.28-64,488.40

Finding the Fourth Proportional to 115,477.08, 159,355.28 and 64,488.40

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Solution

The fourth proportional to 115,477.08, 159,355.28 and 64,488.40 is: 88,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,477.08 : 159,355.28 = 64,488.40 : x
  2. Step 2: Convert to fraction form
    115,477.08/159,355.28 = 64,488.40/x
  3. Step 3: Cross multiply
    115,477.08x = 159,355.28 × 64,488.40
  4. Step 4: Simplify right side
    115,477.08x = 10,276,567,038.75
  5. Step 5: Solve for x
    x = 10,276,567,038.75/115,477.08
  6. Step 6: Final answer
    x = 88,992.27

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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.