Home / 145,070.10-217,313.55-97,830.90

Finding the Fourth Proportional to 145,070.10, 217,313.55 and 97,830.90

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Solution

The fourth proportional to 145,070.10, 217,313.55 and 97,830.90 is: 146,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,070.10 : 217,313.55 = 97,830.90 : x
  2. Step 2: Convert to fraction form
    145,070.10/217,313.55 = 97,830.90/x
  3. Step 3: Cross multiply
    145,070.10x = 217,313.55 × 97,830.90
  4. Step 4: Simplify right side
    145,070.10x = 21,259,980,178.70
  5. Step 5: Solve for x
    x = 21,259,980,178.70/145,070.10
  6. Step 6: Final answer
    x = 146,549.70

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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.