Home / 147,661.60-203,702.16-107,312.80

Finding the Fourth Proportional to 147,661.60, 203,702.16 and 107,312.80

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Solution

The fourth proportional to 147,661.60, 203,702.16 and 107,312.80 is: 148,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,661.60 : 203,702.16 = 107,312.80 : x
  2. Step 2: Convert to fraction form
    147,661.60/203,702.16 = 107,312.80/x
  3. Step 3: Cross multiply
    147,661.60x = 203,702.16 × 107,312.80
  4. Step 4: Simplify right side
    147,661.60x = 21,859,849,155.65
  5. Step 5: Solve for x
    x = 21,859,849,155.65/147,661.60
  6. Step 6: Final answer
    x = 148,040.18

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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.