Home / 223,547.04-308,538.72-128,117.70

Finding the Fourth Proportional to 223,547.04, 308,538.72 and 128,117.70

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Solution

The fourth proportional to 223,547.04, 308,538.72 and 128,117.70 is: 176,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,547.04 : 308,538.72 = 128,117.70 : x
  2. Step 2: Convert to fraction form
    223,547.04/308,538.72 = 128,117.70/x
  3. Step 3: Cross multiply
    223,547.04x = 308,538.72 × 128,117.70
  4. Step 4: Simplify right side
    223,547.04x = 39,529,271,167.34
  5. Step 5: Solve for x
    x = 39,529,271,167.34/223,547.04
  6. Step 6: Final answer
    x = 176,827.53

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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.