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Finding the Fourth Proportional to 106,988.34, 147,642.11 and 59,240.67

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Solution

The fourth proportional to 106,988.34, 147,642.11 and 59,240.67 is: 81,751.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,988.34 : 147,642.11 = 59,240.67 : x
  2. Step 2: Convert to fraction form
    106,988.34/147,642.11 = 59,240.67/x
  3. Step 3: Cross multiply
    106,988.34x = 147,642.11 × 59,240.67
  4. Step 4: Simplify right side
    106,988.34x = 8,746,417,220.41
  5. Step 5: Solve for x
    x = 8,746,417,220.41/106,988.34
  6. Step 6: Final answer
    x = 81,751.13

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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.