Home / 153,649.17-212,018.74-93,234.51

Finding the Fourth Proportional to 153,649.17, 212,018.74 and 93,234.51

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Solution

The fourth proportional to 153,649.17, 212,018.74 and 93,234.51 is: 128,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,649.17 : 212,018.74 = 93,234.51 : x
  2. Step 2: Convert to fraction form
    153,649.17/212,018.74 = 93,234.51/x
  3. Step 3: Cross multiply
    153,649.17x = 212,018.74 × 93,234.51
  4. Step 4: Simplify right side
    153,649.17x = 19,767,463,101.63
  5. Step 5: Solve for x
    x = 19,767,463,101.63/153,649.17
  6. Step 6: Final answer
    x = 128,653.24

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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.