Home / 116,666.40-174,999.60-72,148.80

Finding the Fourth Proportional to 116,666.40, 174,999.60 and 72,148.80

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Solution

The fourth proportional to 116,666.40, 174,999.60 and 72,148.80 is: 108,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,666.40 : 174,999.60 = 72,148.80 : x
  2. Step 2: Convert to fraction form
    116,666.40/174,999.60 = 72,148.80/x
  3. Step 3: Cross multiply
    116,666.40x = 174,999.60 × 72,148.80
  4. Step 4: Simplify right side
    116,666.40x = 12,626,011,140.48
  5. Step 5: Solve for x
    x = 12,626,011,140.48/116,666.40
  6. Step 6: Final answer
    x = 108,223.20

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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.