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Finding the Fourth Proportional to 187,547, 258,804.92 and 102,647.64

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Solution

The fourth proportional to 187,547, 258,804.92 and 102,647.64 is: 141,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,547 : 258,804.92 = 102,647.64 : x
  2. Step 2: Convert to fraction form
    187,547/258,804.92 = 102,647.64/x
  3. Step 3: Cross multiply
    187,547x = 258,804.92 × 102,647.64
  4. Step 4: Simplify right side
    187,547x = 26,565,714,258.39
  5. Step 5: Solve for x
    x = 26,565,714,258.39/187,547
  6. Step 6: Final answer
    x = 141,648.30

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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.