Home / 145,901.80-201,069.54-105,547.12

Finding the Fourth Proportional to 145,901.80, 201,069.54 and 105,547.12

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Solution

The fourth proportional to 145,901.80, 201,069.54 and 105,547.12 is: 145,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,901.80 : 201,069.54 = 105,547.12 : x
  2. Step 2: Convert to fraction form
    145,901.80/201,069.54 = 105,547.12/x
  3. Step 3: Cross multiply
    145,901.80x = 201,069.54 × 105,547.12
  4. Step 4: Simplify right side
    145,901.80x = 21,222,310,866.72
  5. Step 5: Solve for x
    x = 21,222,310,866.72/145,901.80
  6. Step 6: Final answer
    x = 145,456.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.