Home / 130,033.08-195,312.02-77,545.40

Finding the Fourth Proportional to 130,033.08, 195,312.02 and 77,545.40

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Solution

The fourth proportional to 130,033.08, 195,312.02 and 77,545.40 is: 116,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,033.08 : 195,312.02 = 77,545.40 : x
  2. Step 2: Convert to fraction form
    130,033.08/195,312.02 = 77,545.40/x
  3. Step 3: Cross multiply
    130,033.08x = 195,312.02 × 77,545.40
  4. Step 4: Simplify right side
    130,033.08x = 15,145,548,715.71
  5. Step 5: Solve for x
    x = 15,145,548,715.71/130,033.08
  6. Step 6: Final answer
    x = 116,474.58

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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.