Home / 105,005.10-157,466.70-45,800.40

Finding the Fourth Proportional to 105,005.10, 157,466.70 and 45,800.40

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Solution

The fourth proportional to 105,005.10, 157,466.70 and 45,800.40 is: 68,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,005.10 : 157,466.70 = 45,800.40 : x
  2. Step 2: Convert to fraction form
    105,005.10/157,466.70 = 45,800.40/x
  3. Step 3: Cross multiply
    105,005.10x = 157,466.70 × 45,800.40
  4. Step 4: Simplify right side
    105,005.10x = 7,212,037,846.68
  5. Step 5: Solve for x
    x = 7,212,037,846.68/105,005.10
  6. Step 6: Final answer
    x = 68,682.74

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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.