Home / 102,598.02-141,644.17-78,207.51

Finding the Fourth Proportional to 102,598.02, 141,644.17 and 78,207.51

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Solution

The fourth proportional to 102,598.02, 141,644.17 and 78,207.51 is: 107,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,598.02 : 141,644.17 = 78,207.51 : x
  2. Step 2: Convert to fraction form
    102,598.02/141,644.17 = 78,207.51/x
  3. Step 3: Cross multiply
    102,598.02x = 141,644.17 × 78,207.51
  4. Step 4: Simplify right side
    102,598.02x = 11,077,637,841.72
  5. Step 5: Solve for x
    x = 11,077,637,841.72/102,598.02
  6. Step 6: Final answer
    x = 107,971.26

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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.