Home / 147,705.34-221,630.28-91,530.40

Finding the Fourth Proportional to 147,705.34, 221,630.28 and 91,530.40

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Solution

The fourth proportional to 147,705.34, 221,630.28 and 91,530.40 is: 137,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,705.34 : 221,630.28 = 91,530.40 : x
  2. Step 2: Convert to fraction form
    147,705.34/221,630.28 = 91,530.40/x
  3. Step 3: Cross multiply
    147,705.34x = 221,630.28 × 91,530.40
  4. Step 4: Simplify right side
    147,705.34x = 20,285,908,180.51
  5. Step 5: Solve for x
    x = 20,285,908,180.51/147,705.34
  6. Step 6: Final answer
    x = 137,340.38

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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.