Home / 102,108.09-153,048.63-77,066.94

Finding the Fourth Proportional to 102,108.09, 153,048.63 and 77,066.94

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Solution

The fourth proportional to 102,108.09, 153,048.63 and 77,066.94 is: 115,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,108.09 : 153,048.63 = 77,066.94 : x
  2. Step 2: Convert to fraction form
    102,108.09/153,048.63 = 77,066.94/x
  3. Step 3: Cross multiply
    102,108.09x = 153,048.63 × 77,066.94
  4. Step 4: Simplify right side
    102,108.09x = 11,794,989,538.48
  5. Step 5: Solve for x
    x = 11,794,989,538.48/102,108.09
  6. Step 6: Final answer
    x = 115,514.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.