Home / 128,083,101.96-176,752,570.69-69,345,297.48

Finding the Fourth Proportional to 128,083,101.96, 176,752,570.69 and 69,345,297.48

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Solution

The fourth proportional to 128,083,101.96, 176,752,570.69 and 69,345,297.48 is: 95,695,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,083,101.96 : 176,752,570.69 = 69,345,297.48 : x
  2. Step 2: Convert to fraction form
    128,083,101.96/176,752,570.69 = 69,345,297.48/x
  3. Step 3: Cross multiply
    128,083,101.96x = 176,752,570.69 × 69,345,297.48
  4. Step 4: Simplify right side
    128,083,101.96x = 12,256,959,594,506,054
  5. Step 5: Solve for x
    x = 12,256,959,594,506,054/128,083,101.96
  6. Step 6: Final answer
    x = 95,695,368.14

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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.