Home / 147,810.84-203,995.16-84,138.36

Finding the Fourth Proportional to 147,810.84, 203,995.16 and 84,138.36

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Solution

The fourth proportional to 147,810.84, 203,995.16 and 84,138.36 is: 116,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,810.84 : 203,995.16 = 84,138.36 : x
  2. Step 2: Convert to fraction form
    147,810.84/203,995.16 = 84,138.36/x
  3. Step 3: Cross multiply
    147,810.84x = 203,995.16 × 84,138.36
  4. Step 4: Simplify right side
    147,810.84x = 17,163,818,210.34
  5. Step 5: Solve for x
    x = 17,163,818,210.34/147,810.84
  6. Step 6: Final answer
    x = 116,120.16

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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.