Home / 147,615.95-221,430.81-47,783.96

Finding the Fourth Proportional to 147,615.95, 221,430.81 and 47,783.96

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Solution

The fourth proportional to 147,615.95, 221,430.81 and 47,783.96 is: 71,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,615.95 : 221,430.81 = 47,783.96 : x
  2. Step 2: Convert to fraction form
    147,615.95/221,430.81 = 47,783.96/x
  3. Step 3: Cross multiply
    147,615.95x = 221,430.81 × 47,783.96
  4. Step 4: Simplify right side
    147,615.95x = 10,580,840,870.21
  5. Step 5: Solve for x
    x = 10,580,840,870.21/147,615.95
  6. Step 6: Final answer
    x = 71,678.17

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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.