Home / 105,007.10-157,510.65-103,624.70

Finding the Fourth Proportional to 105,007.10, 157,510.65 and 103,624.70

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Solution

The fourth proportional to 105,007.10, 157,510.65 and 103,624.70 is: 155,437.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,007.10 : 157,510.65 = 103,624.70 : x
  2. Step 2: Convert to fraction form
    105,007.10/157,510.65 = 103,624.70/x
  3. Step 3: Cross multiply
    105,007.10x = 157,510.65 × 103,624.70
  4. Step 4: Simplify right side
    105,007.10x = 16,321,993,853.06
  5. Step 5: Solve for x
    x = 16,321,993,853.06/105,007.10
  6. Step 6: Final answer
    x = 155,437.05

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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.