Home / 156,685.84-234,508.80-142,678.10

Finding the Fourth Proportional to 156,685.84, 234,508.80 and 142,678.10

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Solution

The fourth proportional to 156,685.84, 234,508.80 and 142,678.10 is: 213,543.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685.84 : 234,508.80 = 142,678.10 : x
  2. Step 2: Convert to fraction form
    156,685.84/234,508.80 = 142,678.10/x
  3. Step 3: Cross multiply
    156,685.84x = 234,508.80 × 142,678.10
  4. Step 4: Simplify right side
    156,685.84x = 33,459,270,017.28
  5. Step 5: Solve for x
    x = 33,459,270,017.28/156,685.84
  6. Step 6: Final answer
    x = 213,543.67

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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.