Home / 145,837.63-201,256.06-78,769.63

Finding the Fourth Proportional to 145,837.63, 201,256.06 and 78,769.63

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Solution

The fourth proportional to 145,837.63, 201,256.06 and 78,769.63 is: 108,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,837.63 : 201,256.06 = 78,769.63 : x
  2. Step 2: Convert to fraction form
    145,837.63/201,256.06 = 78,769.63/x
  3. Step 3: Cross multiply
    145,837.63x = 201,256.06 × 78,769.63
  4. Step 4: Simplify right side
    145,837.63x = 15,852,864,375.18
  5. Step 5: Solve for x
    x = 15,852,864,375.18/145,837.63
  6. Step 6: Final answer
    x = 108,702.16

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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.