Home / 107,423.16-148,220.10-64,980.80

Finding the Fourth Proportional to 107,423.16, 148,220.10 and 64,980.80

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Solution

The fourth proportional to 107,423.16, 148,220.10 and 64,980.80 is: 89,659.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,423.16 : 148,220.10 = 64,980.80 : x
  2. Step 2: Convert to fraction form
    107,423.16/148,220.10 = 64,980.80/x
  3. Step 3: Cross multiply
    107,423.16x = 148,220.10 × 64,980.80
  4. Step 4: Simplify right side
    107,423.16x = 9,631,460,674.08
  5. Step 5: Solve for x
    x = 9,631,460,674.08/107,423.16
  6. Step 6: Final answer
    x = 89,659.07

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1.5x scale

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.