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Finding the Fourth Proportional to 115,798.15, 159,804.30 and 64,810.45

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Solution

The fourth proportional to 115,798.15, 159,804.30 and 64,810.45 is: 89,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,798.15 : 159,804.30 = 64,810.45 : x
  2. Step 2: Convert to fraction form
    115,798.15/159,804.30 = 64,810.45/x
  3. Step 3: Cross multiply
    115,798.15x = 159,804.30 × 64,810.45
  4. Step 4: Simplify right side
    115,798.15x = 10,356,988,594.94
  5. Step 5: Solve for x
    x = 10,356,988,594.94/115,798.15
  6. Step 6: Final answer
    x = 89,440.02

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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.