Home / 115,725.40-173,430.45-70,762.50

Finding the Fourth Proportional to 115,725.40, 173,430.45 and 70,762.50

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Solution

The fourth proportional to 115,725.40, 173,430.45 and 70,762.50 is: 106,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,725.40 : 173,430.45 = 70,762.50 : x
  2. Step 2: Convert to fraction form
    115,725.40/173,430.45 = 70,762.50/x
  3. Step 3: Cross multiply
    115,725.40x = 173,430.45 × 70,762.50
  4. Step 4: Simplify right side
    115,725.40x = 12,272,372,218.13
  5. Step 5: Solve for x
    x = 12,272,372,218.13/115,725.40
  6. Step 6: Final answer
    x = 106,047.35

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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.