Home / 116,717.20-175,075.80-72,430.45

Finding the Fourth Proportional to 116,717.20, 175,075.80 and 72,430.45

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Solution

The fourth proportional to 116,717.20, 175,075.80 and 72,430.45 is: 108,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,717.20 : 175,075.80 = 72,430.45 : x
  2. Step 2: Convert to fraction form
    116,717.20/175,075.80 = 72,430.45/x
  3. Step 3: Cross multiply
    116,717.20x = 175,075.80 × 72,430.45
  4. Step 4: Simplify right side
    116,717.20x = 12,680,818,978.11
  5. Step 5: Solve for x
    x = 12,680,818,978.11/116,717.20
  6. Step 6: Final answer
    x = 108,645.68

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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.